Kim might have been flexing his political muscles, but more plausible would be Jang defenestrating a rival, especially after the promotion of Jang ally Choe Ryong-hae to oversee the military.
Xinhua news agency revealed no details of Vice-Marshall Choe Ryong-hae's meeting with Wang Jiarui, head of the Communist Party's international department, except for an exchange of views on "issues of common concern regarding the Korean Peninsula".